package P3.T12;

import java.util.Properties;

public class T12 {
    public static void main(String[] args) {
        Properties ps=System.getProperties();
        //ps.list(System.out);
        System.out.println(System.getProperty("java.specification.version"));
        System.out.println("========================");
        System.getenv().forEach((k,v)->{
            System.out.println(k+":"+v);
        });
        System.out.println(System.getenv("windir"));
    }
}
